158277061 has 2 divisors, whose sum is σ = 158277062. Its totient is φ = 158277060.

The previous prime is 158277043. The next prime is 158277107. The reversal of 158277061 is 160772851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141752836 + 16524225 = 11906^2 + 4065^2 .

It is a cyclic number.

It is not a de Polignac number, because 158277061 - 2⁵ = 158277029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158277061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158277461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79138530 + 79138531.

It is an arithmetic number, because the mean of its divisors is an integer number (79138531).

Almost surely, 2^158277061 is an apocalyptic number.

It is an amenable number.

158277061 is a deficient number, since it is larger than the sum of its proper divisors (1).

158277061 is an equidigital number, since it uses as much as digits as its factorization.

158277061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 158277061 is about 12580.8211576192. The cubic root of 158277061 is about 540.9278298978.

The spelling of 158277061 in words is "one hundred fifty-eight million, two hundred seventy-seven thousand, sixty-one".